<nz-affix nzOffsetTop="0">
  <button nz-button nzType="primary">Affix top</button>
</nz-affix>

<div *ngFor="let row of fills" style="margin-top: 32px">{{ row }}</div>

<nz-affix nzOffsetBottom="10">
  <button nz-button nzType="primary">Affix bottom</button>
</nz-affix>
